US5658285A - Rehabitable connecting-screw device for a bone joint, intended in particular for stabilizing at least two vertebrae - Google Patents

Rehabitable connecting-screw device for a bone joint, intended in particular for stabilizing at least two vertebrae Download PDF

Info

Publication number
US5658285A
US5658285A US08549123 US54912395A US5658285A US 5658285 A US5658285 A US 5658285A US 08549123 US08549123 US 08549123 US 54912395 A US54912395 A US 54912395A US 5658285 A US5658285 A US 5658285A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
body
device
tubular
screw
invention
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08549123
Inventor
Thierry Marnay
Jean Huppert
Marc Ameil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aesculap AG
Original Assignee
JBS SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7032Screws or hooks with U-shaped head or back through which longitudinal rods pass
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002Longitudinal elements, e.g. rods
    • A61B17/7004Longitudinal elements, e.g. rods with a cross-section which varies along its length
    • A61B17/7007Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit around the screw or hook heads
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002Longitudinal elements, e.g. rods
    • A61B17/701Longitudinal elements with a non-circular, e.g. rectangular, cross-section
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Threaded wires, pins or screws; Nuts therefor
    • A61B17/864Threaded wires, pins or screws; Nuts therefor hollow, e.g. with socket or cannulated
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Threaded wires, pins or screws; Nuts therefor
    • A61B17/8685Threaded wires, pins or screws; Nuts therefor comprising multiple separate parts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30721Accessories
    • A61F2/30744End caps, e.g. for closing an endoprosthetic cavity
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A61F2/446Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages having a circular or elliptical cross-section substantially parallel to the axis of the spine, e.g. cylinders or frustocones
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00004(bio)absorbable, (bio)resorbable, resorptive
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external and/or bone-contacting surfaces, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external and/or bone-contacting surfaces, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes, grooves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442Intervertebral or spinal discs, e.g. resilient
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/28Bones
    • A61F2002/2817Bone stimulation by chemical reactions or by osteogenic or biological products for enhancing ossification, e.g. by bone morphogenetic or morphogenic proteins [BMP] or by transforming growth factors [TGF]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/28Bones
    • A61F2002/2835Bone graft implants for filling a bony defect or an endoprosthesis cavity
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108Shapes
    • A61F2002/30199Three-dimensional shapes
    • A61F2002/30224Three-dimensional shapes cylindrical
    • A61F2002/30235Three-dimensional shapes cylindrical tubular, e.g. sleeves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30405Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external and/or bone-contacting surfaces, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external and/or bone-contacting surfaces, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes, grooves
    • A61F2002/3085Special external and/or bone-contacting surfaces, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes, grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2002/4475Joints for the spine, e.g. vertebrae, spinal discs hollow
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0069Three-dimensional shapes cylindrical

Abstract

A screw device for a bone joint particularly for stabilizing at least two vertebrae includes a monobloc tubular body with a thread on its exterior, and being longitudinally grooved on its interior deep enough as to form openings at the root of the thread communicating between the exterior of the body at the root and the interior of the body. The openings in the tubular body having circumferential cutting edges. A closure element is provided for screwed attachment to the open end of the tubular body.

Description

BACKGROUND OF THE INVENTION

The present invention relates to a rehabitable connecting-screw device for a bone joint intended, in particular, but not exclusively, for stabilizing at least two vertebrae.

In the case of an irreparable injury to a intervertebral disk, it is necessary either to proceed with its ablation and replace it with a prosthesis, or to effect an intervertebral blocking, that is to say, to immobilize one of the two adjacent vertebrae with respect to the other.

Such a blocking is generally effected by means of screwed metal plates. But, intervertebral prostheses are preferably employed, which favor the growth of the bone in the substance between the vertebrae so as to permit their fusion.

For this purpose, a prosthetic implant is used with upper and lower faces which are adapted to anchor themselves in the bodies of the vertebrae to be stabilized. The implant is open to permit the growth and the bone fusion. The solidarity of the implant is possibly supplemented by a threading so as to avoid possible sliding.

This type of implant has drawbacks, due, in particular, to the large number of parts involved, which makes the implanting difficult.

In order to alleviate certain of these drawbacks, U.S. Pat. No. 5,026,373 and EP-A 0 369 603 propose fusion cages which can be implanted in pairs on two opposite sides of the discal space. Each cage consists of a helicoidal wire having turns which are connected by internal longitudinal bars. The cage is screwed into an internally threaded hole formed between the two vertebrae in the bodies of the vertebrae. Bone substance is placed within the cage. The growth of the bone substance permits its fusion with the surrounding bone substance.

This type of cage, however, has drawbacks due, in particular, to the fact that the inner longitudinal bars are secured to the helicoidal wire by welding and because progressive oxidation of the welds is noted despite the different treatments.

In the case of injury to one or more vertebrae, it is advisable to stabilize the spinal column at the level of this injury and then use a plate which sits astride the injured vertebra or vertebrae and is firmly attached by means of screws at its ends to sound vertebrae, as described in FR-A-2 651 992.

The drawback of this type of device resides in the large number of its parts, and furthermore, it requires placing screws in different axes, which complicates the surgical intervention.

Furthermore, fastening by means of screws is not always reliable over the course of time, due to stresses of the spinal column, and one or more screws may become stripped, with serious consequences for the patient.

Another important drawback of these devices is that each of them is intended for one type of intervention and therefore each requires a specific accessory.

SUMMARY OF THE INVENTION

The present invention is directed at remedying the various above drawbacks of known devices by providing a rehabitable connecting screw device for bone joints intended for stabilizing at least two vertebrae. It is adapted to be put in place with a single accessory. It is also capable of being used for bone consolidation and coaptation of two bone fragments.

The connecting screw device of the invention is characterized essentially by the fact that it comprises a monobloc tubular body having a thread on its outside. The root of the thread is provided with openings which debouch into the interior of the tubular body. One of the ends of the tubular body comprises on its inner side a thread which permits the screw attachment of a threaded closure piece.

Thus, in the case of an intervertebral blocking, the device of the invention is screwed between two vertebrae in an orifice which has been previously drilled and tapped. Then bone substance is introduced into the device. Finally, the closure piece is put in place.

In one particular embodiment of the device of the invention, the closure piece comprises, on the side opposite the thread which permits the screwing thereof into the tubular body, a cylindrical extension which is also threaded and which is split diametrically by a groove which permits the placement in the groove of a bar which is held in the groove by means of a nut screwed onto the extension.

This embodiment makes it possible to fasten a screw in accordance with the invention in each of the vertebrae and to connect them by a bar. Each of the screws is then provided with a closure piece of this type.

On the one hand, the vertebrae may be adjacent or may be separated by one or more other vertebrae. Furthermore, a bar may be firmly attached to more than two screws in accordance with the invention, which are screwed into the body of the vertebrae or between two vertebrae.

The tubular body of the device of the invention can be produced by machining a cylinder of biocompatible metal, which is preferably titanium, possibly treated on its surface by sanding or shot blasting, or coated with a plasma of titanium or with hydroxyapatite. It may also be made of plastic or of bioresorbable material.

The closure piece of the device of the invention may be made of a metal such a titanium, or else of plastic or a bioresorbable material.

Placing the device of the invention does not require the use of extensive mechanical means and can advantageously be effected by endoscopy.

Other advantages and features of the invention will become evident from the following description read with reference to the accompanying drawing which shows various non-limitative embodiments thereof.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a plan view of a first embodiment of a rehabitable screw device in accordance with the invention;

FIG. 2 is a top view of the screw device;

FIG. 3 is a view in longitudinal half-section of a second embodiment of the device in accordance with the invention;

FIG. 4 is a plan view of a variant embodiment of the device in accordance with the invention; FIGS. 5 and 6 show a top view and a profile view, exploded, of another variant embodiment of the device in accordance with the invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIGS. 1 and 2 show a rehabitable screw device in accordance with the invention which comprises a tubular body 1 with a lower portion 10 which has a thread 11 on its outer side and with a cup-like upper portion 12 which has a thread 13 inside it.

The internal thread 13 permits the screwing-on of a closure piece 2 which is provided for this purpose with an external thread 20. The piece 2 is intended to close the tubular body 1 after the bone substance has been introduced into it.

The closure piece 2 comprises a hollow cavity 21, for instance of hexagonal shape, which permits its screwing.

The bone substance introduced into the tubular body 1 can be taken from the vertebra or vertebrae upon the production of the tapped hole.

Three grooves 14 are machined longitudinally in the inner wall of the portions 10 and 12 of the tubular body 1, leaving three longitudinal bars 15 of material which are uniformly spaced apart.

The grooves 14 have a radial depth greater than the thickness of the wall of the tubular body at the place of the root 16 of the thread 11. As a result, the thread is cut into, and this creates opposite the grooves 14, between the turns of the thread 11, openings 17 which permit the passage of the bone substance for establishing fusion with the peripheral bone.

The tubular body can be made by different processes, depending on the nature of the material employed. In the case of a biocompatible hard material such as titanium, it will be made by wire machining or by electro-recessing. In the case of a material which is not as hard, such as a plastic or a bioresorbable material, it may be made by injection.

The side edges 18 of the openings 17 in the lower portion 10 are tapered so that upon screwing of the tubular body 1 into the threaded bore tapped in the bone substance, a clipping of the threads of the tapping by the edges 18 takes place, and the removed bone material is introduced into the tubular body 1.

This phenomenon can be amplified by imparting a special profile to the thread 11, such as that shown in FIG. 3. Elements in FIG. 3 that correspond to those in FIG. 1 are identified by the same reference numberals marked with a ' symbol.

In the embodiment of FIG. 3, the profile of the thread 11 is square, and not conical as in the preceding embodiment, so that the side edges 18 of the openings 17 are linear and cutting.

By previously effecting a suitable tapping, the depth of which is greater than that of the thread 11, for instance, there is removed, upon the screwing, a large amount of bone material while effecting a perfect attachment of the tubular body 1.

For the same purpose, the lower end of the thread may have a self tapping notch, in which case no prior tapping is effected, or a shallower tapping is effected, the material removed being also directed toward the inside of the tubular body 1.

Referring to FIG. 4, in that variant of the device in accordance with the invention, the closure piece 3 comprises, on the side opposite the thread 30, a threaded extension 31 which is split diametrically by a groove 32. That groove permits a bar 4 to be placed in and then locked in the groove 32 by means of a nut 33 which is screwed onto the threaded extension 31.

FIGS. 5 and 6 shows another variant of the device of the invention, wherein two screws 1 are connected, although only one screw 1 is shown. The connection can be effected by means of a knurled plate 5 which is pierced at each of its ends by an orifice 50 into which the threaded portion 60 of a closure piece 6 can be introduced and, in order to permit better locking of the plate 5, the threaded portion 60 has a wide flat head 61.

The present invention is not limited to the above description of certain of its embodiments, which may be subjected to various changes without thereby going beyond the scope of the invention.

In particular, it should be pointed out that the tubular body of the device of the invention can be filled with cement before or after it is put in place.

Furthermore, the device in accordance with the invention can be used as an anchoring screw for an osteosynthesis material by mechanical screwing on the female thread of its tubular part of a fastening system with connection on bar, plate or threaded rod.

Although the present invention has been described in relation to particular embodiments thereof, many other variations and modifications and other uses will become apparent to those skilled in the art. It is preferred, therefore, that the present invention be limited not by the specific disclosure herein, but only by the appended claims.

Claims (18)

What is claimed is:
1. A rehabitable connecting screw device for a bone joint for stabilizing at least two vertebrae comprising:
a hollow, tubular body having a periphery with a screw thread defined thereon, the screw thread extending radially inward to a root;
the interior of the tubular body having defined in it a plurality of circumferentially spaced apart, longitudinal direction grooves having a radial depth into the interior of the body greater than the thickness of the body at the root of the thread and sufficient to form openings in the body at the root of the thread spaced at intervals around the body and communicating through the openings between the outside of the body and the inside of the body;
the tubular body having opposite ends, including an insertion end and an opposite closable end, and a closure piece attached at the tubular body over the closable end thereof.
2. The screw device of claim 1, wherein the closable end of the tubular body has a female thread therein and the closure piece is threaded for screw attachment to and over the closable end of the tubular body.
3. The device of claim 2, wherein the closure piece has a head on the side thereof away from the threaded part thereof; a plate disposed between the head of the closure piece and the tubular body; the plate having a hole therethrough for the closure piece so that when the closure piece is inserted through the plate, the head of the closure piece is blocked by the plate.
4. The screw device of claim 3 wherein the plate has a plurality of openings therethrough, each for a respective one of the closure pieces.
5. The screw device of claim 1, wherein the tubular body is a monobloc body.
6. The screw device of claim 1, wherein the openings include circumferential side edges and the edges are cutting edges when the screw device is rotated normally in the rotation direction of the screw device for screwing in the screw device.
7. The screw device of claim 1, wherein the openings include circumferential side edges, and at least some of the side edges of the openings are cutting edges.
8. The screw device of claim 7, wherein toward the insertion end of the tubular body, the thread includes a self tapping notch.
9. The screw device of claim 1, wherein on the side of the closure piece away from the tubular body, the closure piece including a threaded cylindrical extension away from the body, and the cylindrical extension including a groove defined therein which splits the cylindrical extension diametrically, wherein the groove is for receiving a bar.
10. In combination, the screw device of claim 9 with a bar disposed in the groove in the cylindrical extension; a nut screwed on the extension for holding the bar in the groove.
11. The device of claim 1, wherein the tubular body is comprised of biocompatible metal.
12. The device of claim 1, wherein the tubular body is surface treated by sanding or shot blasting.
13. The device of claim 1, wherein the tubular body is coated with a plasma of bicompatible metal.
14. The screw device of claim 1, wherein the body is coated with hydroxyapatite.
15. The device of claim 1, wherein the tubular body is comprised of machined titanium.
16. The device of claim 1, wherein the tubular body is comprised of plastic.
17. The device of claim 1, wherein the tubular body is comprised of bioresorbable material.
18. The device of claim 1, wherein the closure piece is comprised of a material selected from the group consisting of biocompatible metal, plastic and bioresorbable material.
US08549123 1994-10-28 1995-10-27 Rehabitable connecting-screw device for a bone joint, intended in particular for stabilizing at least two vertebrae Expired - Fee Related US5658285A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9413103A FR2726171B1 (en) 1994-10-28 1994-10-28 A rehabitable connecting screw for bone joint, intended in particular for stabilization of at least two vertebrae
FR9413103 1994-10-28

Publications (1)

Publication Number Publication Date
US5658285A true US5658285A (en) 1997-08-19

Family

ID=9468443

Family Applications (1)

Application Number Title Priority Date Filing Date
US08549123 Expired - Fee Related US5658285A (en) 1994-10-28 1995-10-27 Rehabitable connecting-screw device for a bone joint, intended in particular for stabilizing at least two vertebrae

Country Status (6)

Country Link
US (1) US5658285A (en)
JP (2) JP3892492B2 (en)
DE (1) DE19540180A1 (en)
ES (1) ES2136483B1 (en)
FR (1) FR2726171B1 (en)
GB (1) GB2294399B (en)

Cited By (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6102948A (en) * 1996-01-16 2000-08-15 Surgical Dynamics Inc. Spinal fusion device
US6129763A (en) * 1996-09-13 2000-10-10 Chauvin; Jean-Luc Expandable osteosynthesis cage
US6206922B1 (en) 1995-03-27 2001-03-27 Sdgi Holdings, Inc. Methods and instruments for interbody fusion
US6375655B1 (en) 1995-03-27 2002-04-23 Sdgi Holdings, Inc. Interbody fusion device and method for restoration of normal spinal anatomy
US20020138147A1 (en) * 2001-03-22 2002-09-26 Surgical Dynamics, Inc. Apparatus for fusing adjacent bone structures
US6488682B2 (en) * 2000-03-28 2002-12-03 Showa Ika Kohgyo Co., Ltd. Spinal implant, driver tool and nut guide
US6562039B1 (en) * 1999-12-10 2003-05-13 Chao-Jan Wang Spinal fixation and retrieval device
US6562045B2 (en) 2001-02-13 2003-05-13 Sdgi Holdings, Inc. Machining apparatus
US6581421B2 (en) * 2001-03-01 2003-06-24 James Chmela Security system
US6585770B1 (en) 1997-06-02 2003-07-01 Sdgi Holdings, Inc. Devices for supporting bony structures
US20030135277A1 (en) * 2001-11-26 2003-07-17 Sdgi Holdings, Inc. Implantable joint prosthesis and associated instrumentation
US6613091B1 (en) 1995-03-27 2003-09-02 Sdgi Holdings, Inc. Spinal fusion implants and tools for insertion and revision
US20030199982A1 (en) * 1998-09-04 2003-10-23 Sdgi Holdings, Inc. Peanut spectacle multi discoid thoraco-lumbar disc prosthesis
US20040015172A1 (en) * 2000-11-10 2004-01-22 Lutz Biedermann Bone screw
WO2004032774A1 (en) * 2002-10-02 2004-04-22 Biedermann Motech Gmbh Bone anchoring element
US20040097933A1 (en) * 2002-11-19 2004-05-20 Rodolphe Lourdel Vertebral anchoring device and its blocking device on a polyaxial screw
US6749635B1 (en) 1998-09-04 2004-06-15 Sdgi Holdings, Inc. Peanut spectacle multi discoid thoraco-lumbar disc prosthesis
US20040147929A1 (en) * 2002-12-20 2004-07-29 Biedermann Motech Gmbh Tubular element for an implant for use in spine or bone surgery and implant having such an element
WO2004071315A1 (en) * 2003-02-12 2004-08-26 Sdgi Holdings, Inc. Method and device for correcting spondylolisthesis from the laterial approach
WO2004100808A1 (en) * 2003-05-19 2004-11-25 The University Of Hong Kong Bone treatment device and method
US6949105B2 (en) 2000-08-08 2005-09-27 Sdgi Holdings, Inc. Method and apparatus for stereotactic implantation
WO2006110796A1 (en) * 2005-04-08 2006-10-19 Warsaw Orthopedic, Inc. Multi-piece vertebral attachment device
US7147665B1 (en) 1998-07-22 2006-12-12 Sdgi Holdings, Inc. Threaded cylindrical multidiscoid single or multiple array disc prosthesis
US20060282020A1 (en) * 2005-06-13 2006-12-14 Rudolph Bertagnoli Customizing an intervertebral implant
US20070055257A1 (en) * 2005-06-30 2007-03-08 Alex Vaccaro Cannulated screw access system
US20070179618A1 (en) * 2006-01-31 2007-08-02 Sdgi Holdings, Inc. Intervertebral prosthetic disc
US20070179615A1 (en) * 2006-01-31 2007-08-02 Sdgi Holdings, Inc. Intervertebral prosthetic disc
US7285121B2 (en) 2001-11-05 2007-10-23 Warsaw Orthopedic, Inc. Devices and methods for the correction and treatment of spinal deformities
US20080154314A1 (en) * 2006-08-16 2008-06-26 Mcdevitt Dennis M Composite interference screw for attaching a graft ligament to a bone, and other apparatus for making attachments to bone
US20080234760A1 (en) * 2007-03-23 2008-09-25 Zbigniew Matulaniec Bone screw apparatus and related methods of use
US20080306529A1 (en) * 2007-06-05 2008-12-11 Spartek Medical, Inc. Deflection rod system for a dynamic stabilization and motion preservation spinal implantation system and method
US20090018592A1 (en) * 2007-07-13 2009-01-15 Pitbladdo Richard B Bone screw for orthopedic apparatus
US20090319043A1 (en) * 2007-08-16 2009-12-24 Mcdevitt Dennis Helicoil interference fixation system for attaching a graft ligament to a bone
US20090321145A1 (en) * 2008-06-26 2009-12-31 Kennametal Inc. Threaded nozzle for a cutter bit
US7641692B2 (en) 2000-08-08 2010-01-05 Warsaw Orthopedic, Inc. Implantable joint prosthesis
US20100036427A1 (en) * 2008-02-26 2010-02-11 Spartek Medical, Inc. Load-sharing bone anchor having a deflectable post and method for stabilization of the spine
US20110004245A1 (en) * 2009-07-03 2011-01-06 Accumis Inc. Spine Fixation Device
US20110060373A1 (en) * 2009-09-09 2011-03-10 Russell Thomas A Bone screws and methods of use thereof
USRE42480E1 (en) 1994-11-14 2011-06-21 Warsaw Orthopedic, Inc. Human spinal disc prothesis with hinges
US8007518B2 (en) * 2008-02-26 2011-08-30 Spartek Medical, Inc. Load-sharing component having a deflectable post and method for dynamic stabilization of the spine
US8012181B2 (en) 2008-02-26 2011-09-06 Spartek Medical, Inc. Modular in-line deflection rod and bone anchor system and method for dynamic stabilization of the spine
US8016861B2 (en) 2008-02-26 2011-09-13 Spartek Medical, Inc. Versatile polyaxial connector assembly and method for dynamic stabilization of the spine
US8048115B2 (en) 2007-06-05 2011-11-01 Spartek Medical, Inc. Surgical tool and method for implantation of a dynamic bone anchor
US8057517B2 (en) 2008-02-26 2011-11-15 Spartek Medical, Inc. Load-sharing component having a deflectable post and centering spring and method for dynamic stabilization of the spine
US20110295319A1 (en) * 2008-08-15 2011-12-01 Kinetic Spine Technologies Inc. Dynamic pedicle screw
US8083775B2 (en) * 2008-02-26 2011-12-27 Spartek Medical, Inc. Load-sharing bone anchor having a natural center of rotation and method for dynamic stabilization of the spine
US8257397B2 (en) 2009-12-02 2012-09-04 Spartek Medical, Inc. Low profile spinal prosthesis incorporating a bone anchor having a deflectable post and a compound spinal rod
US8267979B2 (en) 2008-02-26 2012-09-18 Spartek Medical, Inc. Load-sharing bone anchor having a deflectable post and axial spring and method for dynamic stabilization of the spine
US20120253398A1 (en) * 2011-03-30 2012-10-04 Warsaw Orthopedic, Inc. Sacroiliac terminal anchor device and method
US8317836B2 (en) 2007-06-05 2012-11-27 Spartek Medical, Inc. Bone anchor for receiving a rod for stabilization and motion preservation spinal implantation system and method
US8430916B1 (en) 2012-02-07 2013-04-30 Spartek Medical, Inc. Spinal rod connectors, methods of use, and spinal prosthesis incorporating spinal rod connectors
US8518085B2 (en) 2010-06-10 2013-08-27 Spartek Medical, Inc. Adaptive spinal rod and methods for stabilization of the spine
US8979865B2 (en) 2010-03-10 2015-03-17 Smith & Nephew, Inc. Composite interference screws and drivers
US9101426B2 (en) 2012-10-11 2015-08-11 Stryker Trauma Sa Cable plug
US9155531B2 (en) 2013-03-15 2015-10-13 Smith & Nephew, Inc. Miniaturized dual drive open architecture suture anchor
US9308080B2 (en) 2010-03-10 2016-04-12 Smith & Nephew Inc. Composite interference screws and drivers
US9314348B2 (en) 2014-06-04 2016-04-19 Wenzel Spine, Inc. Bilaterally expanding intervertebral body fusion device
US9517088B2 (en) 2006-11-10 2016-12-13 Biedermann Technologies Gmbh & Co. Kg Bone anchoring nail
US9579188B2 (en) 2010-03-10 2017-02-28 Smith & Nephew, Inc. Anchor having a controlled driver orientation
US9775702B2 (en) 2010-03-10 2017-10-03 Smith & Nephew, Inc. Composite interference screws and drivers
US20170290609A1 (en) * 2013-03-18 2017-10-12 Fitzbionics Limited Method of installing a spinal implant assembly
US9808298B2 (en) 2013-04-09 2017-11-07 Smith & Nephew, Inc. Open-architecture interference screw
US9901355B2 (en) 2011-03-11 2018-02-27 Smith & Nephew, Inc. Trephine
US9924934B2 (en) 2011-06-07 2018-03-27 Smith & Nephew, Inc. Surgical anchor delivery system

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29600879U1 (en) * 1996-01-19 1996-03-28 Howmedica Gmbh spinal implant
DE29710484U1 (en) * 1997-06-16 1998-10-15 Howmedica Gmbh Receiving part of a support member of a spinal implant
DE59804611D1 (en) * 1998-08-21 2002-08-01 Synthes Ag Self-tapping hollow cylindrical bone anchoring element
CA2341305A1 (en) 1998-08-21 2000-03-02 Synthes (U.S.A.) Bone-anchoring element with snap-in spherical head
FR2831048B1 (en) 2001-10-18 2004-09-17 Ldr Medical Osteosynthesis device has progressive approach and method of preassembly
FR2831049B1 (en) 2001-10-18 2004-08-13 Ldr Medical Plate for osteosynthesis device and method preassembly
FR2833151B1 (en) 2001-12-12 2004-09-17 Ldr Medical Bone anchoring implant head polyaxial
FR2859095B1 (en) 2003-09-01 2006-05-12 Ldr Medical Bone anchoring implant polyaxial head and establishment of the implant METHOD
ES2269957T3 (en) 2003-10-31 2007-04-01 Spinelab Ag Locking mechanism dto pedicle screw fixation elastic rods.
US8147521B1 (en) 2005-07-20 2012-04-03 Nuvasive, Inc. Systems and methods for treating spinal deformities
US8267978B2 (en) 2006-09-14 2012-09-18 Warsaw Orthopedic, Inc. Hybrid bone fixation apparatus
JP2008119467A (en) * 2006-11-10 2008-05-29 Biedermann Motech Gmbh Bone anchoring nail
GB0717692D0 (en) * 2007-09-11 2007-10-17 Roberts Paul Acetabular component
US9408649B2 (en) 2008-09-11 2016-08-09 Innovasis, Inc. Radiolucent screw with radiopaque marker
US9433439B2 (en) 2009-09-10 2016-09-06 Innovasis, Inc. Radiolucent stabilizing rod with radiopaque marker
US8801712B2 (en) 2010-03-08 2014-08-12 Innovasis, Inc. Radiolucent bone plate with radiopaque marker
CN102144938A (en) * 2011-04-13 2011-08-10 初海滨 Bone screws
FR3024351A1 (en) 2014-08-01 2016-02-05 Ldr Medical bone implants
CN104274235A (en) * 2014-09-18 2015-01-14 常州市江浪铸造有限公司 Square bone nail
CN104274237A (en) * 2014-09-18 2015-01-14 常州市江浪铸造有限公司 Damage-proof bone nail
FR3048176A1 (en) 2016-02-26 2017-09-01 Ldr Medical arthrodesis of spinal implant system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5025373A (en) * 1988-06-30 1991-06-18 Jml Communications, Inc. Portable personal-banking system
US5108395A (en) * 1989-09-18 1992-04-28 Societe De Fabrication De Materiel Orthopedique - Sofamor Implant for anterior dorsolumbar spinal osteosynthesis, intended for the correction of kyphoses

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013071A (en) * 1974-11-11 1977-03-22 Lior Rosenberg Fasteners particularly useful as orthopedic screws
US4776330A (en) * 1986-06-23 1988-10-11 Pfizer Hospital Products Group, Inc. Modular femoral fixation system
EP0293411A1 (en) * 1986-11-25 1988-12-07 Synthes AG, Chur Osteosynthetic device
US5015247A (en) * 1988-06-13 1991-05-14 Michelson Gary K Threaded spinal implant
DE3936703C2 (en) * 1989-11-03 1992-09-10 Lutz 7730 Villingen-Schwenningen De Biedermann
EP0504103B1 (en) * 1991-03-11 1995-04-26 Institut Straumann Ag Means for attaching and holding a cover on a jaw bone
RU2111718C1 (en) * 1992-10-29 1998-05-27 Медевелоп АБ Holding and fastening element to install prosthesis or mechanism of artificial joint

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5025373A (en) * 1988-06-30 1991-06-18 Jml Communications, Inc. Portable personal-banking system
US5108395A (en) * 1989-09-18 1992-04-28 Societe De Fabrication De Materiel Orthopedique - Sofamor Implant for anterior dorsolumbar spinal osteosynthesis, intended for the correction of kyphoses

Cited By (123)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE42576E1 (en) 1994-11-14 2011-07-26 Warsaw Orthopedic, Inc. Human spinal disc prosthesis
USRE42480E1 (en) 1994-11-14 2011-06-21 Warsaw Orthopedic, Inc. Human spinal disc prothesis with hinges
US20090043394A1 (en) * 1995-03-27 2009-02-12 Thomas Zdeblick Spinal fusion implants and tools for insertion and revision
US20050192669A1 (en) * 1995-03-27 2005-09-01 Thomas Zdeblick Spinal fusion implants and tools for insertion and revision
US6375655B1 (en) 1995-03-27 2002-04-23 Sdgi Holdings, Inc. Interbody fusion device and method for restoration of normal spinal anatomy
US6695851B2 (en) 1995-03-27 2004-02-24 Sdgi Holdings, Inc. Methods and instruments for interbody fusion
US6206922B1 (en) 1995-03-27 2001-03-27 Sdgi Holdings, Inc. Methods and instruments for interbody fusion
US6471724B2 (en) 1995-03-27 2002-10-29 Sdgi Holdings, Inc. Methods and instruments for interbody fusion
US6645206B1 (en) 1995-03-27 2003-11-11 Sdgi Holdings, Inc. Interbody fusion device and method for restoration of normal spinal anatomy
US6613091B1 (en) 1995-03-27 2003-09-02 Sdgi Holdings, Inc. Spinal fusion implants and tools for insertion and revision
US20040097928A1 (en) * 1995-03-27 2004-05-20 Thomas Zdeblick Interbody fusion device and method for restoration of normal spinal anatomy
US7238186B2 (en) 1995-03-27 2007-07-03 Warsaw Orthopedic, Inc. Interbody fusion device and method for restoration of normal spinal anatomy
US7985258B2 (en) 1995-03-27 2011-07-26 Warsaw Orthopedic Inc. Methods and instruments for interbody fusion
US7621958B2 (en) 1995-03-27 2009-11-24 Warsaw Orthopedic, Inc. Methods and instruments for interbody fusion
US20040153089A1 (en) * 1995-03-27 2004-08-05 Thomas Zdeblick Methods and instruments for interbody fusion
US6102948A (en) * 1996-01-16 2000-08-15 Surgical Dynamics Inc. Spinal fusion device
US20110009972A1 (en) * 1996-09-13 2011-01-13 Jean-Luc Chauvin Expandable osteosynthesis cage
US7828848B2 (en) 1996-09-13 2010-11-09 Wenzel Spine, Inc. Expandable osteosynthesis cage
US20060241774A1 (en) * 1996-09-13 2006-10-26 David Attali Apparatus for providing proper vertebral spacing
US8992621B2 (en) 1996-09-13 2015-03-31 Liliane Attali Expandable osteosynthesis cage
US6371989B1 (en) 1996-09-13 2002-04-16 Jean-Luc Chauvin Method of providing proper vertebral spacing
US6129763A (en) * 1996-09-13 2000-10-10 Chauvin; Jean-Luc Expandable osteosynthesis cage
US8435299B2 (en) 1996-09-13 2013-05-07 Wenzel Spine, Inc. Expandable osteosynthesis cage
US8790407B2 (en) 1996-09-13 2014-07-29 Liliane Attali Expandable osteosynthesis cage
US20020116066A1 (en) * 1996-09-13 2002-08-22 Jean-Luc Chauvin Expandable osteosynthesis cage
US6585770B1 (en) 1997-06-02 2003-07-01 Sdgi Holdings, Inc. Devices for supporting bony structures
US7147665B1 (en) 1998-07-22 2006-12-12 Sdgi Holdings, Inc. Threaded cylindrical multidiscoid single or multiple array disc prosthesis
US6749635B1 (en) 1998-09-04 2004-06-15 Sdgi Holdings, Inc. Peanut spectacle multi discoid thoraco-lumbar disc prosthesis
US20030199982A1 (en) * 1998-09-04 2003-10-23 Sdgi Holdings, Inc. Peanut spectacle multi discoid thoraco-lumbar disc prosthesis
US6562039B1 (en) * 1999-12-10 2003-05-13 Chao-Jan Wang Spinal fixation and retrieval device
US20050203530A1 (en) * 2000-03-28 2005-09-15 Showa Ika Kohgyo Co., Ltd. Spinal implant, driver tool and nut guide
US6488682B2 (en) * 2000-03-28 2002-12-03 Showa Ika Kohgyo Co., Ltd. Spinal implant, driver tool and nut guide
US6932822B2 (en) 2000-03-28 2005-08-23 Showa Ika Kohgyo Co., Ltd. Spinal implant, driver tool and nut guide
US7641692B2 (en) 2000-08-08 2010-01-05 Warsaw Orthopedic, Inc. Implantable joint prosthesis
US6949105B2 (en) 2000-08-08 2005-09-27 Sdgi Holdings, Inc. Method and apparatus for stereotactic implantation
US8092542B2 (en) 2000-08-08 2012-01-10 Warsaw Orthopedic, Inc. Implantable joint prosthesis
US8968372B2 (en) 2000-11-10 2015-03-03 Biedermann Technologies Gmbh & Co. Kg Bone screw
US8137389B2 (en) * 2000-11-10 2012-03-20 Biedermann Motech Gmbh & Co. Kg Bone screw
US9468483B2 (en) 2000-11-10 2016-10-18 Biedermann Technologies Gmbh & Co. Kg Bone screw
US20040015172A1 (en) * 2000-11-10 2004-01-22 Lutz Biedermann Bone screw
US6562045B2 (en) 2001-02-13 2003-05-13 Sdgi Holdings, Inc. Machining apparatus
US6581421B2 (en) * 2001-03-01 2003-06-24 James Chmela Security system
US20020138147A1 (en) * 2001-03-22 2002-09-26 Surgical Dynamics, Inc. Apparatus for fusing adjacent bone structures
US7285121B2 (en) 2001-11-05 2007-10-23 Warsaw Orthopedic, Inc. Devices and methods for the correction and treatment of spinal deformities
US20030135277A1 (en) * 2001-11-26 2003-07-17 Sdgi Holdings, Inc. Implantable joint prosthesis and associated instrumentation
US20050096746A1 (en) * 2001-11-26 2005-05-05 Sdgi Holdings, Inc. Instrumentation and associated methods for joint prosthesis implantation
US7025787B2 (en) 2001-11-26 2006-04-11 Sdgi Holdings, Inc. Implantable joint prosthesis and associated instrumentation
US9848892B2 (en) 2002-10-02 2017-12-26 Biedermann Technologies Gmbh & Co. Kg Bone anchoring element
WO2004032774A1 (en) * 2002-10-02 2004-04-22 Biedermann Motech Gmbh Bone anchoring element
US20050055026A1 (en) * 2002-10-02 2005-03-10 Biedermann Motech Gmbh Bone anchoring element
EP1681024A1 (en) * 2002-10-02 2006-07-19 BIEDERMANN MOTECH GmbH Bone anchor element
KR100996240B1 (en) 2002-10-02 2010-11-23 비이더만 모테크 게엠베하 & 코. 카게 Anchoring element
US7479156B2 (en) * 2002-11-19 2009-01-20 Choice Spine, Lp Vertebral anchoring device and its blocking device on a polyaxial screw
US20040097933A1 (en) * 2002-11-19 2004-05-20 Rodolphe Lourdel Vertebral anchoring device and its blocking device on a polyaxial screw
US20040147929A1 (en) * 2002-12-20 2004-07-29 Biedermann Motech Gmbh Tubular element for an implant for use in spine or bone surgery and implant having such an element
US20040230307A1 (en) * 2003-02-12 2004-11-18 Sdgi Holdings, Inc. Device for fusing two bone segments
US7364589B2 (en) 2003-02-12 2008-04-29 Warsaw Orthopedic, Inc. Mobile bearing articulating disc
US20100324684A1 (en) * 2003-02-12 2010-12-23 Warsaw Orthopedic, Inc. Spinal Prosthetic Joints
US20040220668A1 (en) * 2003-02-12 2004-11-04 Sdgi Holdings, Inc. Method and device for correcting spondylolisthesis from the lateral approach
WO2004071315A1 (en) * 2003-02-12 2004-08-26 Sdgi Holdings, Inc. Method and device for correcting spondylolisthesis from the laterial approach
WO2004100808A1 (en) * 2003-05-19 2004-11-25 The University Of Hong Kong Bone treatment device and method
WO2006110796A1 (en) * 2005-04-08 2006-10-19 Warsaw Orthopedic, Inc. Multi-piece vertebral attachment device
US20060241593A1 (en) * 2005-04-08 2006-10-26 Sdgi Holdings, Inc. Multi-piece vertebral attachment device
US20060282020A1 (en) * 2005-06-13 2006-12-14 Rudolph Bertagnoli Customizing an intervertebral implant
US8394142B2 (en) 2005-06-13 2013-03-12 Synthes Usa, Llc Customizing an intervertebral implant
US20070055257A1 (en) * 2005-06-30 2007-03-08 Alex Vaccaro Cannulated screw access system
US20070179615A1 (en) * 2006-01-31 2007-08-02 Sdgi Holdings, Inc. Intervertebral prosthetic disc
US20070179618A1 (en) * 2006-01-31 2007-08-02 Sdgi Holdings, Inc. Intervertebral prosthetic disc
US8992612B2 (en) 2006-08-16 2015-03-31 Smith & Nephew, Inc. Helicoil interference fixation system for attaching a graft ligament to a bone
US20080154314A1 (en) * 2006-08-16 2008-06-26 Mcdevitt Dennis M Composite interference screw for attaching a graft ligament to a bone, and other apparatus for making attachments to bone
US9517088B2 (en) 2006-11-10 2016-12-13 Biedermann Technologies Gmbh & Co. Kg Bone anchoring nail
US20080234760A1 (en) * 2007-03-23 2008-09-25 Zbigniew Matulaniec Bone screw apparatus and related methods of use
US8568451B2 (en) 2007-06-05 2013-10-29 Spartek Medical, Inc. Bone anchor for receiving a rod for stabilization and motion preservation spinal implantation system and method
US8317836B2 (en) 2007-06-05 2012-11-27 Spartek Medical, Inc. Bone anchor for receiving a rod for stabilization and motion preservation spinal implantation system and method
US8048115B2 (en) 2007-06-05 2011-11-01 Spartek Medical, Inc. Surgical tool and method for implantation of a dynamic bone anchor
US7985243B2 (en) * 2007-06-05 2011-07-26 Spartek Medical, Inc. Deflection rod system with mount for a dynamic stabilization and motion preservation spinal implantation system and method
US20080306530A1 (en) * 2007-06-05 2008-12-11 Spartek Medical, Inc. Deflection rod system with mount for a dynamic stabilization and motion preservation spinal implantation system and method
US8070775B2 (en) * 2007-06-05 2011-12-06 Spartek Medical, Inc. Deflection rod system for a dynamic stabilization and motion preservation spinal implantation system and method
US20080306529A1 (en) * 2007-06-05 2008-12-11 Spartek Medical, Inc. Deflection rod system for a dynamic stabilization and motion preservation spinal implantation system and method
US20090018592A1 (en) * 2007-07-13 2009-01-15 Pitbladdo Richard B Bone screw for orthopedic apparatus
US8894661B2 (en) 2007-08-16 2014-11-25 Smith & Nephew, Inc. Helicoil interference fixation system for attaching a graft ligament to a bone
US20090319043A1 (en) * 2007-08-16 2009-12-24 Mcdevitt Dennis Helicoil interference fixation system for attaching a graft ligament to a bone
US8097024B2 (en) * 2008-02-26 2012-01-17 Spartek Medical, Inc. Load-sharing bone anchor having a deflectable post and method for stabilization of the spine
US8083775B2 (en) * 2008-02-26 2011-12-27 Spartek Medical, Inc. Load-sharing bone anchor having a natural center of rotation and method for dynamic stabilization of the spine
US8057515B2 (en) 2008-02-26 2011-11-15 Spartek Medical, Inc. Load-sharing anchor having a deflectable post and centering spring and method for dynamic stabilization of the spine
US8057517B2 (en) 2008-02-26 2011-11-15 Spartek Medical, Inc. Load-sharing component having a deflectable post and centering spring and method for dynamic stabilization of the spine
US8267979B2 (en) 2008-02-26 2012-09-18 Spartek Medical, Inc. Load-sharing bone anchor having a deflectable post and axial spring and method for dynamic stabilization of the spine
US8048125B2 (en) 2008-02-26 2011-11-01 Spartek Medical, Inc. Versatile offset polyaxial connector and method for dynamic stabilization of the spine
US8007518B2 (en) * 2008-02-26 2011-08-30 Spartek Medical, Inc. Load-sharing component having a deflectable post and method for dynamic stabilization of the spine
US8016861B2 (en) 2008-02-26 2011-09-13 Spartek Medical, Inc. Versatile polyaxial connector assembly and method for dynamic stabilization of the spine
US8012181B2 (en) 2008-02-26 2011-09-06 Spartek Medical, Inc. Modular in-line deflection rod and bone anchor system and method for dynamic stabilization of the spine
US20100036427A1 (en) * 2008-02-26 2010-02-11 Spartek Medical, Inc. Load-sharing bone anchor having a deflectable post and method for stabilization of the spine
US20090321145A1 (en) * 2008-06-26 2009-12-31 Kennametal Inc. Threaded nozzle for a cutter bit
US20110295319A1 (en) * 2008-08-15 2011-12-01 Kinetic Spine Technologies Inc. Dynamic pedicle screw
US8216281B2 (en) 2008-12-03 2012-07-10 Spartek Medical, Inc. Low profile spinal prosthesis incorporating a bone anchor having a deflectable post and a compound spinal rod
US8048132B2 (en) * 2009-07-03 2011-11-01 Accumis Inc. Spine fixation device
US20110004245A1 (en) * 2009-07-03 2011-01-06 Accumis Inc. Spine Fixation Device
US20110060373A1 (en) * 2009-09-09 2011-03-10 Russell Thomas A Bone screws and methods of use thereof
US9333018B2 (en) 2009-09-09 2016-05-10 Innovision, Inc. Bone screws and methods of use thereof
US9936992B2 (en) 2009-09-09 2018-04-10 Innovision, Inc. Bone screws and methods of use thereof
US8574273B2 (en) 2009-09-09 2013-11-05 Innovision, Inc. Bone screws and methods of use thereof
US8394127B2 (en) 2009-12-02 2013-03-12 Spartek Medical, Inc. Low profile spinal prosthesis incorporating a bone anchor having a deflectable post and a compound spinal rod
US8257397B2 (en) 2009-12-02 2012-09-04 Spartek Medical, Inc. Low profile spinal prosthesis incorporating a bone anchor having a deflectable post and a compound spinal rod
US8372122B2 (en) 2009-12-02 2013-02-12 Spartek Medical, Inc. Low profile spinal prosthesis incorporating a bone anchor having a deflectable post and a compound spinal rod
US9808337B2 (en) 2010-03-10 2017-11-07 Smith & Nephew, Inc. Composite interference screws and drivers
US9775702B2 (en) 2010-03-10 2017-10-03 Smith & Nephew, Inc. Composite interference screws and drivers
US9788935B2 (en) 2010-03-10 2017-10-17 Smith & Nephew, Inc. Composite interference screws and drivers
US8979865B2 (en) 2010-03-10 2015-03-17 Smith & Nephew, Inc. Composite interference screws and drivers
US9308080B2 (en) 2010-03-10 2016-04-12 Smith & Nephew Inc. Composite interference screws and drivers
US9579188B2 (en) 2010-03-10 2017-02-28 Smith & Nephew, Inc. Anchor having a controlled driver orientation
US8518085B2 (en) 2010-06-10 2013-08-27 Spartek Medical, Inc. Adaptive spinal rod and methods for stabilization of the spine
US9901355B2 (en) 2011-03-11 2018-02-27 Smith & Nephew, Inc. Trephine
US8562651B2 (en) * 2011-03-30 2013-10-22 Warsaw Orthopedic, Inc. Sacroiliac terminal anchor device and method
US20120253398A1 (en) * 2011-03-30 2012-10-04 Warsaw Orthopedic, Inc. Sacroiliac terminal anchor device and method
US9924934B2 (en) 2011-06-07 2018-03-27 Smith & Nephew, Inc. Surgical anchor delivery system
US8430916B1 (en) 2012-02-07 2013-04-30 Spartek Medical, Inc. Spinal rod connectors, methods of use, and spinal prosthesis incorporating spinal rod connectors
US9101426B2 (en) 2012-10-11 2015-08-11 Stryker Trauma Sa Cable plug
US9155531B2 (en) 2013-03-15 2015-10-13 Smith & Nephew, Inc. Miniaturized dual drive open architecture suture anchor
US9788828B2 (en) 2013-03-15 2017-10-17 Smith & Nephew, Inc. Miniaturized dual drive open architecture suture anchor
US20170290609A1 (en) * 2013-03-18 2017-10-12 Fitzbionics Limited Method of installing a spinal implant assembly
US9808298B2 (en) 2013-04-09 2017-11-07 Smith & Nephew, Inc. Open-architecture interference screw
US9707095B2 (en) 2014-06-04 2017-07-18 Wenzel Spine, Inc. Bilaterally expanding intervertebral body fusion device
US9314348B2 (en) 2014-06-04 2016-04-19 Wenzel Spine, Inc. Bilaterally expanding intervertebral body fusion device

Also Published As

Publication number Publication date Type
FR2726171B1 (en) 1997-01-24 grant
JP3892492B2 (en) 2007-03-14 grant
FR2726171A1 (en) 1996-05-03 application
JP2006314817A (en) 2006-11-24 application
GB9521971D0 (en) 1996-01-03 grant
GB2294399B (en) 1999-03-24 grant
GB2294399A (en) 1996-05-01 application
DE19540180A1 (en) 1996-05-23 application
ES2136483A1 (en) 1999-11-16 application
JPH08252265A (en) 1996-10-01 application
ES2136483B1 (en) 2000-08-16 grant

Similar Documents

Publication Publication Date Title
US6855168B2 (en) Intersomatic implants in two parts
US6428542B1 (en) Single-lock anterior cervical plate
US6315779B1 (en) Multi-axial bone anchor system
US6780186B2 (en) Anterior cervical plate having polyaxial locking screws and sliding coupling elements
US5776197A (en) Adjustable vertebral body replacement
US5368593A (en) Devices and methods for attachment of spine fixation devices
US6306140B1 (en) Bone screw
CA2015507C (en) Spinal implant
US4883491A (en) Porous-coated artificial joints
US6261291B1 (en) Orthopedic implant assembly
US8388667B2 (en) Systems and methods for the fixation or fusion of bone using compressive implants
US5871356A (en) Dental implants and boring instruments for implanting
US6152927A (en) Anterior cervical plating system
US6139550A (en) Skeletal plating system
US7637954B2 (en) Apparatus for inserting nested interbody spinal fusion implants
US7166130B2 (en) Artificial disc replacements with deployable fixation components
US6015937A (en) Implantable anchoring element and anchoring assembly for prostheses
US4950270A (en) Cannulated self-tapping bone screw
US5013313A (en) Device for fixation of part on a support, especially of an implant on a bone
US6355069B1 (en) Bone engaging prosthesis
US5658337A (en) Intervertebral fusion implant
US6004323A (en) Surgically implantable fastening system
US5554192A (en) Intramedullary implant stem and centralizer
US6267763B1 (en) Method and apparatus for spinal implant insertion
US5000686A (en) Dental implant fixture

Legal Events

Date Code Title Description
AS Assignment

Owner name: JBS S.A., FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MARNAY, THIERRY;AMEIL,MARC;HUPPERT,JEAN;REEL/FRAME:007930/0333;SIGNING DATES FROM 19960227 TO 19960311

AS Assignment

Owner name: AESCULAP AG & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JBS, S.A.;REEL/FRAME:009893/0977

Effective date: 19980930

FPAY Fee payment

Year of fee payment: 4

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Expired due to failure to pay maintenance fee

Effective date: 20050819

AS Assignment

Owner name: AESCULAP AG, GERMANY

Free format text: CHANGE OF NAME;ASSIGNOR:AESCULAP AG & CO. KG;REEL/FRAME:021731/0524

Effective date: 20080506

Owner name: AESCULAP AG,GERMANY

Free format text: CHANGE OF NAME;ASSIGNOR:AESCULAP AG & CO. KG;REEL/FRAME:021731/0524

Effective date: 20080506